Complete mitochondrial genome of the brownbanded bamboo shark Chiloscyllium punctatum.

The complete mitochondrial genome of the brownbanded bamboo shark Chiloscyllium punctatum was obtained for the first time in this study. The mitogenome is 16,703 bp in length, containing 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and one control region. The gene order and direction of transcription of C. punctatum is identical to most vertebrates. The strong codon usage bias against the G was found in the third codon positions of H-strand-encoded protein genes. The tRNA-Ser2 lost dihydrouridine arm and could not be fold into the typical cloverleaf secondary structure. In the control region, the termination-associated sequence domain, the central conserved domain and the conserved sequence blocks domain were identified.